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Technical Data Sheet
PartsTable / COMPONENT / MS35751-40
MS35751-40 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN, head_height: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN, neck_length: 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, head_diameter: 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-053-8381, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MS35751-40
NSN: 5306-00-053-8381
FSC: 5306
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBUTTON
neck_width0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
head_height0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
neck_length0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
head_diameter0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
fastener_length0.750 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
nominal_thread_diameter0.312 INCHES IN
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5306-00-053-8381
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS35751-40 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: BUTTON
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
NECK WIDTH: 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
•
NECK LENGTH: 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
•
HEAD HEIGHT: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEBUTTON
FASTENER LENGTH0.750 INCHES NOMINAL IN
NECK WIDTH0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
NECK LENGTH0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
HEAD DIAMETER0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
HEAD HEIGHT0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS35751-53Upgraded Successor
successor cross-reference
successor
FFB584Upgraded Successor
successor cross-reference
successor
119430Upgraded Successor
successor cross-reference
successor
21260Upgraded Successor
successor cross-reference
successor
120231Upgraded Successor
successor cross-reference
successor
NASM35751Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35751-40?
MS35751-40 is a BOLT,SQUARE NECK.
What parts can replace MS35751-40?
There are 10 known substitutes for MS35751-40: MS35751-53, FFB584, 119430 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS35751-40 still available?
MS35751-40 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026